How can I get Washington DC to give the family POA instead of my brother's girlfriend?

Your brother has to assign u POA. No one can grant it.

As I said on ur other post. Md, where he resides, does not recognize Common law. So I can't see where being in a District or state that does makes it automatically common law.

Common law seems to be a little sticky. Can't find any ground rules. Just see where the courts can get involved. It may pay for to see a lawyer. There is Legal aid. The laws concerning should be cut and dry when it comes to if the residing state determines Common Law.

Baltimore, MD is not all that far from Washington, DC. Go down there and visit your brother in the hospital and his girlfriend.

My brother is not cognitive and he lives with his girlfriend off and on, and she does not communicate with the family, nor did he give her POA , the hospital grants her that position

worriedinCali has the right answer, red857. If your family intends to try for guardianship, your family should seek out a lawyer.

I recommend you and your family members document any interaction with her, such as if she refuses to give you access to your family (isolating him) or if she fails to provide him with proper care or if you know she's stealing him money or so on.

Can you visit your brother? Unless there's abuse being committed on the part of your family, I see no reason why you can't visit him.

Ok per your other post this is his wife. Common law wife under the eyes of the law.

does the girlfriend have POA? You have to go to court and fight for guardianship. Your brother evidently assigned his girlfriend as his POA at some point in type, that’s the only way she would have it now. And if he cannot revoke it and assign a POA then guardianship is necessary.